GB274213A - Improvements in and relating to high frequency wave-meters and the like, such as may be employed in connection with wireless telegraphy - Google Patents
Improvements in and relating to high frequency wave-meters and the like, such as may be employed in connection with wireless telegraphyInfo
- Publication number
- GB274213A GB274213A GB1032626A GB1032626A GB274213A GB 274213 A GB274213 A GB 274213A GB 1032626 A GB1032626 A GB 1032626A GB 1032626 A GB1032626 A GB 1032626A GB 274213 A GB274213 A GB 274213A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condenser
- dial
- adjustable
- main
- inductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
274,213. Edgeworth, K. E. April 20, 1926. Condensers. - In a wave meter, heterodyne oscillator, or calibrated amplifier in which oscillations are set up in a tuned circuit containing an inductance and a variable condenser, the condenser plates are shaped to give a linear relationship between angular movement of the condenser spindle and wavelength or frequency, a small adjustable condenser is provided in parallel with the main condenser, and the inductance is adjustable. In the wave meter shown, a variable condenser 11 is provided with an adjustable plate 18 forming, with one of the fixed plates, a small auxiliary condenser. This is adjusted, when the instrument is being calibrated, until a linear law is obtained. The zero is then corrected by adjusting the dial 12 on the spindle and clamping in the required position, or by altering the datum line. The main dial 12 of the condenser preferably has a toothed edge 13 engaging a pinion having a knob and secondary dial, the readings on which are in. smaller units than those on the main dial.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1032626A GB274213A (en) | 1926-04-20 | 1926-04-20 | Improvements in and relating to high frequency wave-meters and the like, such as may be employed in connection with wireless telegraphy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1032626A GB274213A (en) | 1926-04-20 | 1926-04-20 | Improvements in and relating to high frequency wave-meters and the like, such as may be employed in connection with wireless telegraphy |
Publications (1)
Publication Number | Publication Date |
---|---|
GB274213A true GB274213A (en) | 1927-07-20 |
Family
ID=9965788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1032626A Expired GB274213A (en) | 1926-04-20 | 1926-04-20 | Improvements in and relating to high frequency wave-meters and the like, such as may be employed in connection with wireless telegraphy |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB274213A (en) |
-
1926
- 1926-04-20 GB GB1032626A patent/GB274213A/en not_active Expired
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